feat(release): add release script for version bumping and tagging.

utils/release.sh

@@ -0,0 +1,110 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+usage() {
+  cat <<'EOF'
+Usage: utils/release.sh <major|minor|patch> [--push]
+
+Bumps the client and core package versions together, commits the release, and
+creates an annotated vX.Y.Z tag. The tag is shared by the backend and client
+release workflows. By default, prints the command to push the branch and tag.
+Pass --push to push both atomically to origin.
+EOF
+}
+
+if [[ ${1:-} == --help || ${1:-} == -h ]]; then
+  usage
+  exit 0
+fi
+
+if [[ $# -lt 1 || $# -gt 2 ]]; then
+  usage >&2
+  exit 2
+fi
+
+bump=$1
+case "$bump" in
+  major|minor|patch) ;;
+  *)
+    usage >&2
+    exit 2
+    ;;
+esac
+
+push=0
+if [[ $# -eq 2 ]]; then
+  if [[ $2 != --push ]]; then
+    usage >&2
+    exit 2
+  fi
+  push=1
+fi
+
+script_dir=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)
+root=$(git -C "$script_dir" rev-parse --show-toplevel 2>/dev/null) || {
+  printf 'Error: run this script from inside a git repository.\n' >&2
+  exit 1
+}
+cd "$root"
+
+if [[ -n $(git status --porcelain) ]]; then
+  printf 'Error: working tree must be clean before releasing.\n' >&2
+  exit 1
+fi
+
+branch=$(git branch --show-current)
+if [[ -z $branch ]]; then
+  printf 'Error: release from a branch, not a detached HEAD.\n' >&2
+  exit 1
+fi
+
+if [[ $push -eq 1 ]] && ! git remote get-url origin >/dev/null 2>&1; then
+  printf 'Error: remote "origin" is not configured.\n' >&2
+  exit 1
+fi
+
+client_version=$(node -p "require('./client/package.json').version")
+core_version=$(node -p "require('./client/core/package.json').version")
+if [[ $client_version != "$core_version" ]]; then
+  printf 'Error: client version (%s) and core version (%s) differ.\n' "$client_version" "$core_version" >&2
+  exit 1
+fi
+
+next_version=$(node - "$client_version" "$bump" <<'NODE'
+const [, , version, bump] = process.argv
+const match = /^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)$/.exec(version)
+if (!match) throw new Error(`Expected a stable semver version, got ${version}`)
+
+let [major, minor, patch] = match.slice(1).map(BigInt)
+if (bump === 'major') [major, minor, patch] = [major + 1n, 0n, 0n]
+if (bump === 'minor') [minor, patch] = [minor + 1n, 0n]
+if (bump === 'patch') patch += 1n
+console.log(`${major}.${minor}.${patch}`)
+NODE
+)
+tag="v$next_version"
+
+if git rev-parse --verify --quiet "refs/tags/$tag" >/dev/null; then
+  printf 'Error: tag %s already exists locally.\n' "$tag" >&2
+  exit 1
+fi
+
+(cd "$root/client" && npm version "$next_version" --no-git-tag-version)
+(cd "$root/client/core" && npm version "$next_version" --no-git-tag-version)
+
+git add -- \
+  client/package.json \
+  client/package-lock.json \
+  client/core/package.json \
+  client/core/package-lock.json
+git commit -m "release: $tag"
+git tag --annotate "$tag" --message "Release $tag"
+
+push_command=(git push --atomic origin "HEAD:refs/heads/$branch" "refs/tags/$tag")
+if [[ $push -eq 1 ]]; then
+  "${push_command[@]}"
+else
+  printf '\nRelease %s created locally. To push the release commit and tag, run:\n  ' "$tag"
+  printf '%q ' "${push_command[@]}"
+  printf '\n'
+fi